This is a very strong and popular size of flat, block neodymium magnet in grade N40. They are not really toys because they will break if allowed to slam together, but they very strong and useful for holding, hanging or joining things.

This is a very strong and popular size of flat, block neodymium magnet in grade N40. They are not really toys because they will break if allowed to slam together, but they very strong and useful for holding, hanging or joining things.